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The effect of age on the assessment of anterior chamber depth after myopic LASIK with the IOLMaster and Orbscan IIz

Poster Details

First Author: E.Tay SINGAPORE

Co Author(s):    P. Ong   H. Gimbel   G. Kaye        

Abstract Details


To assess anterior chamber depth (ACD) before and after myopic Lasik in different age groups with the IOL master and Orbscan IIz.


Private Practice, Canada


99 eyes were assessed preoperatively, 1 and 3 months after LASIK in 2 age groups (≤ 40 and > 40years). ACD was measured from the epithelium with the IOL master and endothelium with the Orbscan IIz.


Mean (SD) spherical equivalent before Lasik was - 4.05 (0.13) D. After Lasik, significant decreases in ACD were detected with the IOL master at 1 and 3 months in both age groups (p < 0.001 in both groups at both time points). With the Orbscan IIz, a significant decrease in ACD was detected at 1 month after Lasik in those ≤ 40 years (p = 0.012) but not at 3 months post-operatively (p = 0.291). In those > than 40 years, a significant increase in ACD was detected at 1 month after Lasik (p < 0.001) but not at 3 months post-operatively (p = 0.557).


ACD decreased significantly after Lasik in all patients at all time points with IOL master measurements. ACD decreased significantly in younger patients (≤ 40 years) but increased significantly in older patients (> 40 years) 1 month after Lasik with Orbscan IIz measurements. After Lasik, age influences ACD measurements made with the Orbscan IIz in the early post-operative period. FINANCIAL INTEREST: NONE

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